Collapsible roasting oven

ABSTRACT

A collapsible roasting oven includes a base, two side plates, a cover and a rear plate combined together. The base has two opposite sides respectively and pivotally combined with one side plate by means of hinges. Each side plate is composed of an upper folding plate and a lower folding plate pivotally connected together by hinges. The cover is pivotally mounted at the topside of the two side plates by hinges, having a heater installed at the topside. The rear plate is pivotally assembled at the rear side of the cover by hinges. The roasting oven of this invention is needless to be assembled and able to be quickly expanded from the collapsed condition for use without help of any tool, and also able to be collapsed quickly and convenient for saving storing space and for to be carried about.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to a collapsible roasting oven, particularly toone able to be expanded for use and collapsed quickly, saving storingspace and convenient to be carried about.

2. Description of the Prior Art

A conventional roasting frame 1, as shown in FIG. 1, includes an oven 10provided thereon with a roasting grid 11 and having an undersidethreadably fixed with legs 12 for supporting the oven 10. However, theconventional roasting frame 1 is fixed in form, large in volume andimpossible to be collapsed when it is not in use, thus taking too muchspace. In addition, the conventional roasting frame 1 is open-typedwithout any cover; therefore, during carrying out roasting, heat energyis easy to disperse upward and get lost outward, reducing roastingeffect.

SUMMARY OF THE INVENTION

The objective of this invention is to offer a collapsible roasting ovenable to be expanded for use and collapsed quickly, convenient to becarried about and economizing storing space.

The collapsible roasting oven in the present invention includes a base,two side plates, a cover and a rear plate. The base is formed with arecess surrounded by four low walls, and the front and the rear sidewalls are respectively and pivotally assembled at the opposite sides ofthe base. Each side plate is composed of an upper folding plate and alower folding plate pivotally connected together by means of hinges. Theupper folding plate has an upper side edge set with hinges for pivotallycombining the cover, while the lower folding plate has a lower side edgealso disposed with hinges for pivotally connecting the base. The coveris pivotally assembled on the two side plates by the hinges at the upperedge of the upper folding plate and formed inside with a recesssurrounded by four low side walls. The rear plate is pivotally combinedwith the rear side wall of the cover, having an upper side edge fixedwith hinges for pivotally connecting the cover.

BRIEF DESCRIPTION OF DRAWINGS

This invention will be better understood by referring to theaccompanying drawings, wherein:

FIG. 1 is an exploded perspective view of a conventional roasting frame;

FIG. 2 is an exploded perspective view of a collapsible roasting oven inthe present invention;

FIG. 3 is a perspective view of the collapsible roasting oven in acollapsed condition in the present invention;

FIG. 4 is a perspective view of the collapsible roasting oven with acover pulled upward in the present invention;

FIG. 5 is a perspective view of the collapsible roasting oven in acondition of turning and shifting a rear plate inward in the presentinvention;

FIG. 6 is a perspective view of the collapsible roasting oven in acondition of the rear plate collapsed on a base in the presentinvention;

FIG. 7 is a perspective view of the collapsible roasting oven expandedfor use in the present invention; and

FIG. 8 is a perspective view of the collapsible roasting oven with aroasting grid assembled in the interior for roasting food in the presentinvention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

A preferred embodiment of a collapsible roasting oven in the presentinvention, as shown in FIG. 2, includes a base 2, two side plates 3, acover 4 and a rear plate 5 as main components combined together.

The base 2 is formed with a recess 20 surrounded by four low side wallsand the front and the rear side wall are respectively bored with anengage hole 21.

The two side plates 3 are respectively and pivotally assembled on twoopposite side walls of the base 20. Each side plate 3 is composed of anupper folding plate 30 and a lower folding plate 31 pivotally connectedtogether by means of two hinges 32. The upper folding plate 30 has anupper edge provided with two hinges 33, and the lower folding plate 31has a lower edge also disposed with two hinges 34. Further, the upperfolding plate 30 has an inner side secured with a stop plate 35 whoselower unfixed portion resists against the inner side of the lowerfolding plate 31. The upper folding plate 30 and the lower folding plate31 together with the stop plate 35 are respectively and correspondinglybored with hanging holes 36, and the upper folding plate 30 and thelower folding plate 31 respectively have an inner side fixed thereonwith a plurality of support studs 37.

The cover 4 pivotally mounted on the upper side of the two side plate 3is formed with a recess 40 surrounded by four low side walls and thefront and the rear side one of the four side walls are respectivelyprovided with a pivotal positioning retainer 41 and an engage hole 43.Each positioning retainer 41 is fixed with a positioning projection 42to be engaged in the engage hole 43. The rear low side wall of the cover4 further has its inner side secured with an elastic holding strip 44having a protruding engage member 45 fixed at one side. A heater 46 isinstalled at the topside of the cover 4, having a lifting grip 47assembled thereon.

The rear plate 5 pivotally positioned at the rear side of the cover 4has an upper edge fixed with two hinges 50 for pivotally combining thecover 4 and the two opposite side edges respectively and oppositely cutwith a plurality of notches 51. A pull ring 52 is provided at an outerside near a lower edge of the rear plate 5, disposed thereon with amovable clasping member 53 and having an end fixed with a pivot 54inserted into the rear plate 5. Further, the rear plate 5 is bored withan engage hole 55 in the underside.

In assembling and collapsing, referring to FIGS. 2 and 3, firstly, theupper folding plate 30 and the lower folding plate 31 of the two sideplates 3 are pivotally combined together to form an integral side plate3 by means of the hinges 32 and then the two lower folding plates 31have their lower edges pivotally assembled with the base 2 by the hinges34. Next, the rear plate 5 is pivotally combined together with the cover4 by the two hinges 50 and then the rear plate 5 is collapsed in therecess 40 of the cover 4, letting one side of the rear plate 5 held bythe holding strip 44 inside the cover 4 and having the engage member 45on the holding strip 44 engaged in the engage hole 55 at the undersideof the rear plate 5 to firmly position the rear plate 5 in the recess 40of the cover 4. Afterward, the two opposite upper folding plates 30 havetheir upper edges combined together with the cover 4 by the hinges 33,letting the cover 4 pivotally positioned on the two side plate 3, andthen the upper folding plates 30 and the lower folding plates 31 of thetwo side plates 3 are oppositely folded inward, letting the two sideplates 3 collapsed on the base 2. After the two side plates 3 arecollapsed and the cover 4 is covered on the base 2, the two positioningretainers 41 at the opposite sides of the cover 4 respectively have oneend pulled outward to let the positioning projection 42 disengaged fromthe engage hole 43 and then, turn and shift the positioning retainer 41downward to engage the positioning projection 42 in the engage hole 21of the base 2, letting the cover 4 clasped on the base 2, as shown inFIG. 3.

To expand the roasting oven in the collapsed condition for use, as shownin FIGS. 4˜8, firstly, the positioning retainer 41 at the opposite sidesof the cover 4 respectively have one end pulled outward to disengage thepositioning projection 42 from the engage hole 21 of the base 2 andthen, turn the positioning retainer 41 upward and have the positioningprojection 42 engaged in the engage hole 43 of the cover 4, letting thecover 4 and the base 2 no longer clasped with each other. Next, thelifting grip 47 on the heater 46 at the topside of the cover 4 is pulledupward to actuate the two opposite side plates 3 that are pivotallyconnected with the cover 4 to be pulled upward at the same time, asshown in FIG. 4. At this time, the two side plates 3 will be held inposition by the stop plates 35 respectively disposed at the inner sideof the upper folding plate 30 and the lower folding plate 31,immediately letting the upper folding plates 30 and the lower foldingplates 31 stretched erect and fixed in place not to bend outward.Subsequently, the rear plate 5 collapsed in the recess 40 of the cover 4is pulled downward and outward, as shown in FIG. 5, to swing the rearplate 5 away from the recess 40 to let it stand erect between the cover4 and the base 2, and then the pull ring 52 of the rear plate 5 isturned for an angle to let the clasping member 53 on the pull ring 52turned in a vertical state and clasped on the outer side of the base 2,as shown in FIG. 6, thus finishing expanding the roasting oven, readyfor use.

To roast food (A), referring to FIG. 8, only directly place a roastinggrid (B) between the two side plates 3 to have the two opposite sides ofthe roasting grid (B) respectively positioned astride on the supportstuds 37 on the inner walls of the two side plates 3 and positionedthereon, thus able to carry out roasting of food (B) on the roastinggrid (B). In addition, a roasting frame (not shown) employed to prickfood (A) for roasting can be inserted and hung in the hanging holes 36of the two side plates 3, equally able to carry out roasting of food(A). Covered by the two side plates 3 and the cover 4 together with therear plate 5, the roasting oven of this invention not only has anexcellent effect of concentrating heat for carrying out overall roastingto increase roasting efficiency, but also can always keep the roastedfood hot.

To collapse the roasting oven, referring to FIGS. 7 to 3, firstly, thepull ring 52 of the rear plate 5 is turned for an angle to actuate theclasping member 53 to be in a horizontal state not to clasp the outerside of the base 2. Next, the rear plate 5 is swung inward and movedinto the recess 40 of the cover 4, letting one side of the rear plate 5elastically held by the elastic holding strip 44 in the recess 40 of thecover 4 and having the engage member 45 of the holding strip 44 engagedin the engage hole 55 of the rear plate 5 to position the rear plate 5in the recess 40 of the cover 4. At this time, the two side plates 3 andthe cover 4, which are no longer supported by the rear plate 5, will bepressed downward by the weight of the cover 4 to be collapsed downwardand laid on the base 2. Afterward, the positioning retainers 41 at thetwo opposite sides of the cover 4 respectively have one end pulledoutward to let the positioning projection 42 disengaged from the engagehole 43 of the cover 4 and then, turn the positioning retainer 41downward to have the positioning projection 42 engaged in the engagehole 21 of the base 2 to clasp the cover 4 and the base 2 together.Evidently, the roasting oven of this invention can be collapsedconveniently and quickly, thus greatly diminishing the volume of theroasting oven and facilitating the roasting oven to be carried about bymeans of the lifting grip 47 on the heater 46 at the topside of thecover 4.

As can be understood from the above description, the collapsibleroasting oven of this invention has the following advantages.

1. It is unnecessary to be assembled and able to be expanded from thecollapsed condition for use conveniently and quickly.

2. The heater of the roasting oven is installed on the cover; therefore,heat energy can directly be transmitted downward from above to carry outroasting of food, able to effectively control heat source and saveenergy source.

3. The roasting oven of this invention is provided with a heater toproduce heat energy for carrying out roasting of food, discarding aconventional way of using charcoal for roasting. In addition, the heatsource of the heater is transmitted from above for carrying out roastingand oil dropping to the lower side can easily be collected, avoidingproducing oily smoke and charcoal ashes and conforming to environmentalprotection.

4. The roasting oven of this invention can be collapsed quickly forsaving storing space and convenience of being carried around and has alarge capacity after it is expanded.

5. During roasting food, the roasting oven covered by the two sideplates and the rear plate together with the cover can concentrate heatsource, able to save roasting time and energy.

6. Apart from being able to concentrate heat source for elevatingroasting efficiency, the roasting oven of this invention can prevent carexhaust, dust, mosquitoes and flies or floating impurities from adheringto the roasted food when carrying out roasting outdoors, always keepingroasted food hygienic.

While the preferred embodiment of the invention has been describedabove, it will be recognized and understood that various modificationsmay be made therein and the appended claims are intended to cover allsuch modifications that may fall within the spirit and scope of theinvention.

1. A collapsible roasting oven comprising: a base provided with arecess; two side plates respectively and pivotally assembled at twoopposite sides of said base, each said side plate composed of an upperfolding plate and a lower folding plate, said upper folding plate andsaid lower folding plate pivotally connected together by means ofhinges, said upper folding plate having an upper side edge provided withhinges, said lower folding plate having a lower edge also disposed withhinges for pivotally combining said base; a cover pivotally mounted ontopside of said two side plates, said cover pivotally combined with saidtwo side plates by means of said hinges at upper edges of said upperfolding plates, said cover formed with a recess inside; and a rear platepivotally assembled at rear side of said cover, said rear plate havingan upper edge fixed with hinges for pivotally connecting said cover. 2.The collapsible roasting oven as claimed in claim 1, wherein said baseand said cover respectively have their opposite two side wallsrespectively bored with an engage hole, said cover having two oppositesides respectively provided with a positioning retainer, saidpositioning retainer fixed thereon with a positioning projection to beengaged with either an engage hole of said cover or an engage hole ofsaid base.
 3. The collapsible roasting oven as claimed in claim 1,wherein said upper folding plate and said lower folding plate of saidside plate have their inner side disposed with a stop plate, and saidupper folding plate and said lower folding plate together with said stopplate are correspondingly bored with hanging holes.
 4. The collapsibleroasting oven as claimed in claim 1, wherein said upper folding plateand said lower folding plate of said side plate are respectively fixedwith a plurality of support studs at the inner side.
 5. The collapsibleroasting oven as claimed in claim 1, wherein said cover is set with aholding strip in said recess, said holding strip having one side securedwith an engage member, said rear plate having an underside bored with anengage hole for engaging said engage member of said holding strip. 6.The collapsible roasting oven as claimed in claim 1, wherein a heater isinstalled at a topside of said cover and has a lifting grip assembledthereon.
 7. The collapsible roasting oven as claimed in claim 1, whereinsaid rear plate has two opposite sides respectively cut with pluralnotches and an outside near a lower edge provided with a pull ring, saidpull ring secured thereon with a clasping member, said pull ring formedwith a pivot inserted into said rear plate.